Qualification > Math
IGCSE MATHS Doubts
Shazizzzle:
--- Quote from: A@di on May 11, 2010, 08:15:56 pm ---ok shazzizle has already answered.
v use the same formula
first find the standard width (k)
sw = (h*cw)/f
then find the height
h = f * (sw/cw)
@baladaya - a is 100. 300/75 = 4. 25*4 = 100
--- End quote ---
YES! A=100.
I SECOND THAT! :)
Vin:
this is it i guess .. pls. check i think its wrong .. :\ dunno . . =\
Ghost Of Highbury:
--- Quote from: Shazizzzle on May 11, 2010, 08:15:35 pm ---Umm, June 2007, Q12. Which region is shaded?
--- End quote ---
here
Vin:
--- Quote from: A@di on May 11, 2010, 08:25:52 pm ---i think this is the answer. some1 plz check
--- End quote ---
Even i got the same .. excepting urs is neater .. ;)
Shazizzzle:
Oh, good. that's what I got too! Thanks guys! :)
I just got confused with y=5x.
The requires region should be where the y values are greater.
I always thought greater meant further. so y>5x would be FORWARD to the line.
As in, R would be that triangle in the middle.
However I correct myself, and thought the ans I got was weird.
You guys justified it. :)
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